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Finding the Fourth Proportional to 33,220.40, 49,830.60 and 19,180.40

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Solution

The fourth proportional to 33,220.40, 49,830.60 and 19,180.40 is: 28,770.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,220.40 : 49,830.60 = 19,180.40 : x
  2. Step 2: Convert to fraction form
    33,220.40/49,830.60 = 19,180.40/x
  3. Step 3: Cross multiply
    33,220.40x = 49,830.60 × 19,180.40
  4. Step 4: Simplify right side
    33,220.40x = 955,770,840.24
  5. Step 5: Solve for x
    x = 955,770,840.24/33,220.40
  6. Step 6: Final answer
    x = 28,770.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.